"I have sought his guidance, help and support for our endeavour. I have not invited him to our party," Bhushan told reporters after meeting Achuthanandan at his official residence here.
Bhushan said he explained to the Marxist stalwart about the aims and objectives of AAP and how people in all parts of the country were pinning hopes on it to root out corruption and bring about radical changes in the power structure.
Asked about their interaction, sources close to Achuthanandan said they mainly spoke about the general political situation and legal issues concerning some public interests cases being pursued by the CPI(M) leader.
Two days back, Achuthanandan had presented to Bhushan an award instituted by Kerala Lawyers Club and wished success to the AAP and its ministry in Delhi.
Bhushan had last year met Achuthanandan seeking his support to the anti-nuclear power plant agitation at Kudankulam in Tamil Nadu.